That might be part of it. But in my opinion anyone who bought in the last month has seen a 50% increase real quick and they feel like they made their money and are okay with pulling out at this point. And to be honest I don't blame them, that's a hell of a profit!
Now obviously this wouldn't be too many people, but I'm sure there are a few who threw $1000 in here or there. Look at the volume, not much. When 500,000 shares move in a day I would consider it a true movement.